Means for securing the barrels of automatic pistols having removable barrels



June 19, 1923. 1,459,285

CLAYE J. DE v MEANS FOR SECURING THE BARRELS 0F AUTOMATIC PISTOLS HAVING REMOVABLE BARRELS Filed March 25.. 1921 are 12827; & 5 21.. 5/

f/lrn'qf a if MEANS FOR SECURING THE BARRELS Patented June 19; 19 23.

A Qumran-f s TAr s JOSEPH nEo LAYE, or LIEGELBELGIUM.

Application filed March 25, 1921. Serial No. 455,567,.

To all whom it may concern;

Be it known that I, Josnrir DEGLAYE, a.

sub'ect of the Kingof Belgium, residing at iege, 32 Rue Adolphe Borgnet Belgium,

have invented certain new and useful'Improvements in Means for Securing the Barrels of Automatic Pistols Having Removable Barrels (for which'I have filed an application in Belgium May 2, 1918); and I do hereby declare the following to be a full,

clear and exact description of'the inven- Y the groove 18 whereby the barrel is disconnected from theqframe and the breech can a tion, such as will enable others skilled in the art to which it appertains to make andu'se the sa'me,reference being'had to the accompanying drawings and to letters or figures of reference marked which'form a part of this specification. V

The present invention relates to means for preventing the rotation of the barrels of automatic pistols having fixed. barrels put ,in positionby a movement of rotation.

In automotic pistols of this type as constructed heretofore, it occasionally happens that the barrel shifts during the firing.

I The present invention has for its object to prevent this defect. For this purpose the trigger is provided with a head which, when firing takes place, enters into a suitable groove provided at the back of the barrel, so that the latter cannot makethe slightestrotary'motion when the firer has commenced to pull thetrigger. I i

The accompanying drawings represent,pby

wayof example, one method of carrying out the invention. In these drawings: I

Figurel is a' section through the arm, the

trigger being shown at rest.

Figure 2 is a similarsection through the arm, the trigger beingshown in the firing position, and the breech slide being at the end of its recoil stroke.

Fig. 3 is a section taken on the line 3 -3 ofFig.1.t V Y I Fig. 4 is a fragmentary view of a portion of the frame. y i

The barrel'l3 is provided .in its rear part with segmental ribs 14 adapted to enter a groove 15 in the frame 16. I

In order to place the barrel'l3 in its seat, the said barrel is placedin the movable breech 17 in such manner that the ribs 14 or AUTOMATIC PISTOLS HAVING REMOVABLE BARRELS. l

are located'in the groove 18 provided in said I breech, so that when'the breech 17 .is moved into the groove 15 of the frame 16.

In;order to remove the barrel it. isnecessary to remove the securing ring 19and to turn the barrel 13, after having moved to the rear the ribs 14: can be introduced the breech towards the rear to cause the groove 15 of the frame to register. with the groove 18 of the barrel.

The ribs 14 pass from the groove 15 into be removed with the barrel '13 ment towards the front.

It results from this construction that Y J by movewhen the two grooves 15and 18 coincide at the end of the recoil movement the barrel 13 is susceptible of angular displacement, it only being maintained in position by the pressure of the spring 20.-, a

The trigger 1 carriesa sleeve 2 surroundmg the pivot 3 fixed to the body 4. It j,

is acted upon by a double-armed sprin .5

suspended from the sleeve2 and locate in a groove made in the rear face of the trig ger and bears upon the pivot 60f a safety a I device" placed adjacent the trigger. The safety device is in operation when thecir-, cular portion 9 of the pivot 6 enters the rea cess '7 of the bar 8 connected at 10 to the trigger 1. The trigger 1 is prividedi with I a head 11 engaging in the firing position,'

with a groove 12 in the lower part of the barrel 1 By the engagement of this head in the of the barrelis prevented as long as vthe trlgger does not returnto'its initial position.

What I claim is groove 12 ofthebarrel 13, all movement of rotation and consequently all displacement,

1. An automatic pistol having a fixed bar-E engage with and disengage from the frame by a rotary movement and comprising means controlled by the trigger for preventing the barrel from turning during the recoil as long as the trigger is acted upon for firing.

'2. An automatic pistol having a removable barrel and comprising a trigger provided with a head engaging upon. firing pull ef the trigger, with a groove in the barrel turning when the trigger is acted upon for s 0 as to prevent the latter from turning. firing."

barrel provided with segmental ribs adaptin presence oft o'wit e s M .ed to'engage, Withand disengage from the I JOSEPHDECLA YE; frame by a rotary movement and comprisr Witnesses: r

r. "ing means controlled by the trigger-for en- GEORGES VANDER HAUGHEN,

gaging with and preventing the barrel from v CH R ES'MARELIN'G."

: 3; An automatic pistolhaving a fixed In testimony whereof I aifix my eigna tiire 

